Improvement



UNITEDv STATES PATENT OFFICE, N

' WILLIAUM Ii. GUY, OF BOSTON, MASSACHUSETTS, ASSIGNOR-TO E. H. AUSTIN,

OF M ADBURY, NEW HAMPSHIRE.

sMPRovEMi-:NT iN GAS AND ifi/rtree PIPE-2s.

Specification forming part of Letters IatentvNo. 45,4!" dated December 2l), 1364.

To all whom it may concern? Beit -known that I, WM. B. GUY, of Boston, in the county of Suffolk and State of Massa,- oliusetts, have invented a new and useful Inipmvcment in as and-"Water Pipes; and I do hereby declare the followingto be a full and exact description ofthe sarne,"reterence being had to the accompanying drawing, and to the letters of referenceV marked thereon.

The object of my invention is to construct pipes for conveying gas and water that will not be liable tolealiage, and will be more durable than those generally in use.

To accomplish this object I. place in the insideof a pipe of any suitable material a tube or lining of glass, with a space between this in- -side tube or lining and the inner surface of the pipe,var5ing in width according to the size ot' the pipe, which space l ll with bitunien or other elastic or plastic material.

In the accompanying drawing, A represents a section of gas or water pipe made accord ing to my plan; B, theinner tube of glass; U, the bitumen, or other substance between the glass tube and the inner surface of the pipe. l The advantages which I claim for pipes coni structed in this manner are as follows: First,

lthe glass lining secures the pipes from the lining prevents lthe latter from being broken by the pipe being contracted or expanded by the action of cold or heat it will also in water-pipes form a protection against cold, rendering the water less liable Io freeze and the pipes to burst from this cause.

What I claim as new and of my invention, and desire to secure by Letters Patent, is-

1. The innertubeot' glass separated from the pipe, in the manner and for the purpose set forth. v 2. Any elastic or plastic substance 'placed between thel pipe and inner tube or lining, substantially as and for the purpose described.

' WM; l. IU Y.

-Witnesses M Anous MARX, l). C. Wiccan. 

